Company lists · Data refreshed September 2026

Top 25 Network security consulting firms based in Dallas, United States

RevenueBase identified 85 network security consulting firms headquartered in Dallas, United States as of September 2026 and tracks 491 professional contacts across them, including 137 with verified work emails. New York is the largest hub.

This list covers network security consulting firms headquartered in Dallas, United States, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Every row shows the company's own description, how directly it supports the match, and when it was last checked. Data refreshed September 5, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, the natural-language company search RevenueBase customers use to build their own targeted lists and unlock verified emails and direct dials at the companies on them. How these lists are built and judged.

How to read this list HQ checked on every row Match evidence on every row Refreshed Sep 5, 2026 86% judged on-target in blind review
85Companies
491Contacts tracked
137Verified emails
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The 25 largest network security consulting firms based in Dallas, United States

Ranked by team size
Top 25 of 85 network security consulting firms based in Dallas, United States, ranked by team size, largest first. Data refreshed Sep 5, 2026. Evidence rates how directly each company's own description names network security consulting firms: strong (names it), partial (names part of it), indirect (matched on its full profile rather than the summary shown). Click a count to unlock that company's people.
#CompanyHeadquartersEmployeesContacts
1
Apollo Information SystemsIndirect evidence
Dallas, TX, United StatesHQ checked Sep 5, 202651-20064

“Apollo Information Systems delivers intelligence-led cybersecurity solutions for government agencies, educational institutions, and enterprises.”

Source: company website · checked Sep 5, 2026
2
Oaktruss GroupIndirect evidence
Dallas, TX, United StatesHQ checked Sep 5, 202651-20052

“OakTruss Group is an advisory firm focused on helping organizations operate securely at the intersection of cybersecurity, AI, and data.”

Source: company website · checked Sep 5, 2026
3
Upstart CyberIndirect evidence
Dallas, TX, United StatesHQ checked Sep 5, 202611-5015

“At Upstart Cyber, we bring the expertise gained from government and large-scale businesses to organizations of all sizes.”

Source: company website · checked Sep 5, 2026
4
Progressive IT SolutionsIndirect evidence
Dallas, TX, United StatesHQ checked Sep 5, 20261-1010

“We are like an “easy button” for your IT Department!”

Source: company website · checked Sep 5, 2026
5
TechnoxiIndirect evidence
Dallas, TX, United StatesHQ checked Sep 5, 202611-509

“Technoxi isn't your average IT company, and we never wanted to be.”

Source: company website · checked Sep 5, 2026
6
Phoenix IT Advisors LLCIndirect evidence
Dallas, TX, United StatesHQ checked Sep 5, 202611-507

“Did you know that the IT Industry is completely unregulated?”

Source: company website · checked Sep 5, 2026
7
Black Belt SecurePartial evidence
Dallas, TX, United StatesHQ checked Sep 5, 20261-106

“We are security engineers with over 20 years of experience working in the DFW Metroplex.”

Source: company website · checked Sep 5, 2026
8
Cybase Risk ManagementPartial evidence
Dallas, TX, United StatesHQ checked Sep 5, 20261-106

“CyBase Risk is a catalyst cyber risk management consulting firm, dedicated to empowering small and medium-sized businesses (SMBs) with insight and roadmaps to proactively protect…”

Source: company website · checked Sep 5, 2026
9
Logos SystemsPartial evidence
Dallas, TX, United StatesHQ checked Sep 5, 20261-105

“At Logos Systems we are a security and vCISO services provider.”

Source: company website · checked Sep 5, 2026
10
ASI Security PartnersStrong evidence
Dallas, TX, United StatesHQ checked Sep 5, 20261-104

“ASI Security Partners, a leading network and internet security company, delivers a comprehensive set of best-of-breed solutions that help customers protect their critical…”

Source: company website · checked Sep 5, 2026
11
Birch Cline CybersecurityIndirect evidence
Dallas, TX, United StatesHQ checked Sep 5, 202611-504

“Birch Cline is a Dallas, Texas-based cybersecurity firm that specializes in protecting highly regulated environments and government agencies.”

Source: company website · checked Sep 5, 2026
12
Strafe CybersecurityIndirect evidence
Dallas, TX, United StatesHQ checked Sep 5, 20261-104

“Welcome to Strafe, where cybersecurity steps up to combat emerging threats.”

Source: company website · checked Sep 5, 2026
13
M5 Networking ServicesStrong evidence
Dallas, TX, United StatesHQ checked Sep 5, 20261-104

“M5 Networking Services is a technology and communications consulting company.”

Source: company website · checked Sep 5, 2026
14
Method Cyber SecurityIndirect evidence
Dallas, TX, United StatesHQ checked Sep 5, 20261-103

“Method is here to assist its clients in protecting their vital information from the plethora of cyber-attacks occurring within all business segments.”

Source: company website · checked Sep 5, 2026
15
Bolt ResourcesIndirect evidence
Dallas, TX, United StatesHQ checked Sep 5, 20261-103

“At Bolt Resources, we believe cybersecurity leadership is the cornerstone of modern business resilience.”

Source: company website · checked Sep 5, 2026
16
Black ARC SecurityPartial evidence
Dallas, TX, United StatesHQ checked Sep 5, 20261-103

“With decades of combined experience in system and application architecture, Black Arc Security's team of veteran certified security experts can quickly evaluate and mitigate risks…”

Source: company website · checked Sep 5, 2026
17
Bastet PartnersPartial evidence
Dallas, TX, United StatesHQ checked Sep 5, 20261-103

“Bastet Partners is a small minority owned business specializing in developing and maintaining security solutions.”

Source: company website · checked Sep 5, 2026
18
JemuraiPartial evidence
Dallas, TX, United StatesHQ checked Sep 5, 20261-103

“Jemurai is a small security company built around developers that specialize in security.”

Source: company website · checked Sep 5, 2026
19
QuatronicsPartial evidence
Dallas, TX, United StatesHQ checked Sep 5, 20261-102

“At Quatronics, we are more than just a cybersecurity consulting firm; we are your dedicated ally in safeguarding your digital assets and ensuring a resilient and secure business…”

Source: company website · checked Sep 5, 2026
20
DL CyberPartial evidence
Dallas, TX, United StatesHQ checked Sep 5, 20261-102

“Dallas-based firm delivering strategic cybersecurity solutions that close critical security gaps and enable business growth.”

Source: company website · checked Sep 5, 2026
21
Cyber Defense LabsPartial evidence
Dallas, TX, United StatesHQ checked Sep 5, 202651-2002

“Cyber Defense Labs is a full life-cycle information security service provider helping companies manage, detect and respond to today’s cyber risks.”

Source: company website · checked Sep 5, 2026
22
OodatopiaIndirect evidence
Dallas, United StatesHQ checked Sep 5, 202611-502

“A team of top tier talent and leadership formerly from industry or government that provides strategy, management, training and engineering services for the commercial and…”

Source: company website · checked Sep 5, 2026
23
Badger SolutionsStrong evidence
Dallas, TX, United StatesHQ checked Sep 5, 202611-502

“Qualified in a broad spectrum of disciplines, including network infrastructure, cloud strategies, cyber security, mobility, and project management; Badger’s team supports a wide…”

Source: company website · checked Sep 5, 2026
24
Slva CybersecurityIndirect evidence
Dallas, TX, United StatesHQ checked Sep 5, 20261-102

“SLVA’s expertise has been hard won in the trenches of banks and financial services, healthcare, telecommunications, retail, utilities, and government organizations.”

Source: company website · checked Sep 5, 2026
25
Netex ConsultingPartial evidence
Dallas, TX, United StatesHQ checked Sep 5, 20261-102

“We specialize in delivering next-generation cybersecurity solutions, cloud networking services, virtualization expertise, and comprehensive system administration.”

Source: company website · checked Sep 5, 2026

Showing 25 of 85 network security consulting firms based in Dallas, United States

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Network security consulting firms based in Dallas, United States at a glance

As of Sep 5, 2026
1-10Median size (employees)
New YorkLargest hub · 134 HQs
Contacts with mobile numbers
Sep 5, 2026Data refreshed

Companies by employee count

1-10
54
11-50
20
51-200
8
201-500
2
501-1,000
1

Email recency for this list is measured across the whole United States list rather than this city, so it is reported there. Company counts and contact totals on this page are exact for Dallas, over 85 companies.

How this list was built

Company categories are rarely black and white. RevenueBase reads each company's own description of its business to decide whether it belongs among network security consulting firms, so some rows will be adjacent to the category rather than pure plays. The description and evidence rating on every row are there so you can check each match yourself.

Source
The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase SmartSearch, the natural-language company search available to every RevenueBase user.
What qualifies
Companies headquartered in Dallas, United States whose own description of what they do matches “network security consulting firms”. Matching reads each company's description, not its industry code or its name.
What we exclude
Companies whose own description does not clearly place them among network security consulting firms, and records with no verified work email. Companies headquartered outside Dallas are excluded even when they keep an office there.
Match quality
In blind human judging of this matching method, 86% of matched companies were on target. Expect roughly 1 in 7 rows to be adjacent to the category rather than a pure play. Every row shows the company's own description and an evidence rating so you can judge each match yourself. Read the full methodology: how the lists are built, how the judging worked, and what the figure means.
Ranking
Team size, largest first: companies are ordered by the number of professionals RevenueBase tracks at each one. Employee ranges shown are reported bands, for context.
Verification
Every listed company carries at least one verified work email, 137 across the full list. Contacts re-verify on a rolling cadence, and each contact's own verification date is shown inside RevenueBase.
Refresh
This page's figures were pulled from the company graph on September 5, 2026. Lists refresh periodically as the graph is re-checked.
Corrections
Wrong category, wrong headquarters, or a company that has closed? Use “Report an issue” on any row. Reports go to the RevenueBase Data Team and feed back into the company graph.

Network security consulting firms by metro in the United States

Frequently asked

How many network security consulting firms are there based in Dallas, United States?

RevenueBase identified 85 network security consulting firms headquartered in Dallas, United States as of September 2026, matched on each company's own description of what it does rather than its industry code.

What is the largest company on this list?

Apollo Information Systems, headquartered in Dallas, tops this list with the largest team on record.

Which city has the most network security consulting firms?

New York leads with 134 headquartered companies, followed by Houston (102) and Washington (98).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work the top results, verified emails and direct dials included. Upgrading unlocks all 137 verified decision-maker contacts tracked across these 85 companies.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 5, 2026.

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About this data

RevenueBase is a B2B data infrastructure company. Its company graph covers 60 million companies and 398.9 million professional contacts, with emails verified on a rolling cadence rather than scraped once and left to decay. These company lists are generated directly from that graph with RevenueBase SmartSearch, the same natural-language company search every RevenueBase user has: describe a market in plain words, get the companies that match, and add verified emails and direct dials for the people at them. It is the same data that powers RevenueBase's B2B data products, and a free account includes 500 credits to start. How these lists are built and judged.